Hetubindutika 3.2.2

3.2.2

prayojanaviśeṣopanyāsāt prakaraṇasya tadupāyatā[viṣayaḥ saṃśayaḥ ja]nyate tatastadbhāvanirdhāraṇāyakṛṣīvalāder iva bījād avadhṛtaye pravṛttir yukteti cet; na, prayojanaviśeṣopāyatāsaṃśayasya tadabhidhā[nāt prāg api] bhāvāt | tatsādhakabādhakapramāṇābhāve tasyanyāyaprāptatvāt | anumānādivyutpattyarthānāṃ ca prakaraṇānāṃ darśanāt kim asyānumā[navyutpādanaṃ pra]yojanam anyad vā, na vā kiñcid apīty evaṃ rūpaś ca saṃśayaḥ prāk pravarttamānaḥ kena nivāryeta | api ca kim idaṃ niṣprayojanam, uta prayojana[vat, asmad abhima]tena vā prayojanena tadvad iti jijñāsoḥ pravṛttisambhave vyartha eva prayojanavākyopanyāsaḥ | tasmād `yat prayojanarahitaṃ vākyam, tadartho vā, na tat prekṣāvatā''rabhyate kartuṃ pratipādayituṃ vā | tadyathā {p. 3.1} daśadāḍimādivākyaṃ kākadanta[parīkṣā ca | niṣprayojanaṃ cedaṃ] prakaraṇaṃ tadartho vā' iti vyāpakānupalabdhyā pratyavatiṣṭhamānasya tadasiddhatodbhāvanārtham ādau prayojanavākyopanyāsaḥ |[prakaraṇatadabhidheyayoḥ prayojanacintā |] tatra